Dear Sarunnio, I believe that "client-grooming", as it is used in your example, would mean "to prepare and train clients". (By) Emulating the techniques that some of the best Public Relations firms in New York City and Los Angeles use to prepare and train their clients, credibility indicators can be acquired in a short time. Public relations firms are hired to help corporations develop policies and standards that will assist them in keeping a "credible" image in front of the public.
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